Upcoming engineering work
For this upgrade to happen, Network Rail will sometimes need to close parts of the line.
Important dates are listed below, along with details of alternative transport arrangements where currently known. Where no details are yet shown, information will be added closer to the time.
It’s important to remember these dates can sometimes change, so please always check every journey close to the time you will be travelling.
Monday 1 March every day until Thursday 22 April
- Some platforms will be closed at London King’s Cross whilst Network Rail upgrade the track and overhead wires, and bring a disused tunnel back in to use
- There will be no significant changes to train times because of this work, however there might be some small changes to services and how you enter and exit London King’s Cross station
- Always check every journey before you travel
Friday 23 April
No trains between Finsbury Park and London King’s Cross
- If travelling to or from central London, please use Thameslink services via St Pancras or Great Northern services to and from Moorgate
- Trains from King’s Lynn and Cambridge that would usually run to and from London King’s Cross will run to and from Finsbury Park
Saturday 24 and Sunday 25 April
Severely reduced service with no trains between Potters Bar or Gordon Hill to or from London King’s Cross, St Pancras via Finsbury Park or Moorgate
- There will also be no trains between Letchworth Garden City or St Neots and Welwyn Garden City
- Trains will only run between Peterborough and St Neots, between King’s Lynn and Letchworth Garden City, and between Welwyn Garden City and Potters Bar
- Journeys will take longer and may involve using multiple replacement buses or a combination of buses and trains, with queuing systems in place
Replacement buses will run between:
- St Neots and Bedford for connections with alternative Thameslink trains to and from central London, which your ticket will be valid on
- St Neots to Hitchin, calling at all stations
- Letchworth Garden City to Luton Airport Parkway via Hitchin for connections with alternative Thameslink trains to and from central London, which your ticket will be valid on
- Letchworth Garden City to Welwyn Garden City, calling at all stations
- Stevenage to Luton Airport Parkway via Hitchin for connections with alternative Thameslink trains to and from central London, which your ticket will be valid on
- Potters Bar to St Albans for connections with alternative Thameslink trains to and from central London, which your ticket will be valid on
- Potters Bar via Hadley Wood to Cockfosters for connections with London Underground services to and from central London. Your ticket will be valid on the Tube between Cockfosters and King’s Cross St Pancras or Moorgate
- Stevenage via Hertford North to Alexandra Palace, calling at all stations. You can change at Bowes Park to connect with London Underground services from Bounds Green Tube station which is nearby. Your ticket will be valid on the Tube between Bounds Green and King’s Cross St Pancras or Moorgate
If you need step-free access for your journey, please speak to a member of station staff or contact our Assisted Travel team on 0800 058 2844.
Monday 26 April every day until Thursday 3 June
- Some platforms will be closed at London King’s Cross whilst Network Rail upgrade the track and overhead wires
- Please check back closer to the time for further information
Friday 4 June
- From midday no trains will run to or from London King’s Cross or to or from St Pancras via Finsbury Park
- Please check back closer to the time for further information
Saturday 5 and Sunday 6 June
- No trains Between Potters Bar / Gordon Hill and London King’s Cross, St Pancras via Finsbury Park or Moorgate
- Please check back closer to the time for further information